/*
 * Copyright (C) 2012 Atlas of Living Australia
 * All Rights Reserved.
 *
 * The contents of this file are subject to the Mozilla Public
 * License Version 1.1 (the "License"); you may not use this file
 * except in compliance with the License. You may obtain a copy of
 * the License at http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS
 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * rights and limitations under the License.
 */
package au.org.ala.phylojive

import javax.annotation.PostConstruct

class TreeViewerController {
    def authService
    def ADMIN_ROLE

    @PostConstruct
    def init() {
        ADMIN_ROLE = grailsApplication.config.auth.admin_role
    }

    def index() {
        redirect(uri: '/')
    }

    def showPrivate() {
        log.debug "params = " + params

        Tree treeInstance = Tree.findByPrivateUrlPath(params.id)

        if (!treeInstance) {
            // legacy access via the name as path
            treeInstance = Tree.findByName(params.id)
            if (treeInstance && !treeInstance.isPublic && treeInstance.privateUrlPath) {
                // don't allow "name" viewing of tree if private and has privateUrlPth set
                treeInstance = null
            }
        }

        if (!treeInstance) {
            flash.message = message(code: 'default.not.found.message', args: [message(code: 'tree.label', default: 'Tree'), params.id])
            redirect(uri: '/') // redirect(controller: "TreeViewer")
            return
        }

        //if (checkPermissions(treeInstance.owner.email)) {
            render(view: "treeViewer", model: [treeInstance: treeInstance, defaultTmpl: grailsApplication.config.phylojive.defaultTmpl])
        //}
    }

    def show() {
        Tree treeInstance = getTree(params)
        def currentUser = authService.getEmail()

        if (!treeInstance || !treeInstance.isPublic) {
            flash.message = message(code: 'default.not.found.message', args: [message(code: 'tree.label', default: 'Tree'), params.id])
            redirect(uri: '/') // redirect(controller: "TreeViewer")
            return
        }

        render(view: "treeViewer", model: [treeInstance: treeInstance, defaultTmpl: grailsApplication.config.phylojive.defaultTmpl])
    }

    private def getTree(params) {
        log.debug("params.id == Long ? " + params.id)
        def index = params.id.toString()
        def treeInstance

        if (index.isLong()) {
            // database ID in URL
            treeInstance = Tree.get(params.id)
        } else {
            // Tree.name in URL
            treeInstance = Tree.findByName(index)
        }

        return treeInstance
    }

    boolean checkPermissions(owner) {
        def currentUser = authService.getUserId()
        log.debug("owner = " + owner + " || userId = " + currentUser + " || ADMIN_ROLE = " + ADMIN_ROLE)
        if (currentUser != null && (currentUser.equalsIgnoreCase(owner) || authService.userInRole(ADMIN_ROLE))) {
            log.debug("returning true")
            return true;
        } else {
            flash.message = "You do not have permission to view this page"
            redirect(uri:"/")
        }
    }
}
